DebugUtils.java revision cba2e2c881e8e16ea5025b564c94320174d65f01
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.support.v4.util; 18 19/** 20 * Useful debugging utilities that are not available on all versions of Android. 21 */ 22public class DebugUtils { 23 public static void buildShortClassTag(Object cls, StringBuilder out) { 24 if (cls == null) { 25 out.append("null"); 26 } else { 27 String simpleName = cls.getClass().getSimpleName(); 28 if (simpleName == null || simpleName.length() <= 0) { 29 simpleName = cls.getClass().getName(); 30 int end = simpleName.lastIndexOf('.'); 31 if (end > 0) { 32 simpleName = simpleName.substring(end+1); 33 } 34 } 35 out.append(simpleName); 36 out.append('{'); 37 out.append(Integer.toHexString(System.identityHashCode(cls))); 38 } 39 } 40} 41